WHAT DO YOU CALL THE PIECE THAT GOES ON YOUR HARD TOP THAT HALF A THE ZIPPER IS ATTACHED TO

trying to build a sun shade. need to attach one part of zipper to the hard top the other end on to the sunbrella fabric. Not sure what you call the piece that is secured to the hardtop and how it is secured to the hard top

Is it called a zipper track?

Thanks for your help
Tony.

Hi Tony,
No, it's aluminum or pvc awning track, brand names ( costa track, flex-a-rail).
The welt is the beaded extrusion that is sewn to the fabric that slides into the awning track, it is called keder welt. There is also a pvc welt available that I don't recommend. It tends to perforate easily at the sewn edges. Many fabricators will sew the zipper to the keder in order to make the fabric easily removable from the track.
Costa track is a beefer pvc profile than flex-a-rail, but flex-a-rail is easier to bend and make tighter curves.
I hope this helps, thanks for the question.
Tammy

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